<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>小练习</title>
	<style type="text/css">
		body{
			background-color: #ccc;
		}
		.box{
			width: 150px;
			height: 80px;
			border-radius: 10px;
			background-color: pink;
			border: 3px white solid;
			color: white;
			font-size: 30px;
			font-weight: 500;
			text-align: center;
			line-height: 80px;
			margin: 200px auto;
		}
		.box:hover{
			background-color: red;
			text-shadow: 2px 2px 5px black;
			box-shadow: 0 0 20px red;
			border: 3px red solid;
			color: #999;
		}
	</style>
</head>
<body>
	<div class="box">
		button
	</div>
</body>
</html>